Objectives: The aim of this study was to evaluate the
os trigonum syndrome by magnetic resonance imaging
(MRI).
Materials and methods: A total of 76 ankle MRI images
were evaluated, retrospectively. All MRI examinations
were done in supine position with the injured foot in neutral
position and then in forced plantar flexion.
Results: Os trigonum syndrome was seen in 16/76 cases.
Four of 16 os trigonum syndrome patients are female.
The average age of this 16 patients who were defined as
os trigonum syndrome by MRI was 34.81±14.16 years.
Twelve of 16 os trigonum syndrome was seen in right
ankle. Disruption of the cartilaginous synchondrosis between
the accessory bone and the talus was observed
in 12 patients. Tenosynovitis of the flexor halluces longus
was associated in 7 patients. Subcutan edema, surrounding
the os trigonum was detected in 11 patients.
Conclusion: In patients with ostrigonum syndrome MR
imaging allows complete diagnosis.